20851384

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{153319}}^1$

素因数の和:153342

約数の個数: 16

約数和(自身を含む): 41396400

約数和(自身を除く): 20545016

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 153319, 306638, 613276, 1226552, 2606423, 5212846, 10425692, 20851384]

約数ペア:

[(1, 20851384), (2, 10425692), (4, 5212846), (8, 2606423), (17, 1226552), (34, 613276), (68, 306638), (136, 153319)]